rename failures column to be deferrals

lib/App/Netdisco/DB/Result/DeviceSkip.pm

@@ -13,7 +13,7 @@ __PACKAGE__->add_columns(
   { data_type => "inet", is_nullable => 0 },
   "action",
   { data_type => "text", is_nullable => 0 },
-  "failures",
+  "deferrals",
   { data_type => "integer", is_nullable => 1, default_value => '0' },
   "skipover",
   { data_type => "boolean", is_nullable => 1, default_value => \'false' },

lib/App/Netdisco/JobQueue/PostgreSQL.pm

@@ -42,7 +42,7 @@ sub _getsome {
     status => 'queued',
     device => { '-not_in' => $jobs->correlate('skipped')->search({
       backend => $fqdn,
-      -or => [{ failures => { '>=', 10 } },{ '-bool' => 'skipover' }],
+      -or => [{ deferrals => { '>=', 10 } },{ '-bool' => 'skipover' }],
     }, { columns => 'device' })->as_query },
     %$where,
   }, { order_by => 'random()', rows => $num_slots });

share/schema_versions/App-Netdisco-DB-41-42-PostgreSQL.sql

@@ -4,7 +4,7 @@ CREATE TABLE "device_skip" (
   "backend" text NOT NULL,
   "device" inet NOT NULL,
   "action" text NOT NULL,
-  "failures" integer DEFAULT 0,
+  "deferrals" integer DEFAULT 0,
   "skipover"  boolean DEFAULT false,
   PRIMARY KEY ("backend", "device", "action")
 );